The first thing you need to know when using an herbicide such as Prodiamine 65 WDG is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 0.185-0.55 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 0.185-.55 oz of product with for each 1,000 sq ft area that needs to be treated.
Calinbration does not refer to the spray pattern used to apply herbicides. Although, we would recommend using a mist stream. You would calibrate by determining the volume of water required to treat 1,000 square feet. Use this calibration volume to determine the amount of water and Prodiamine 65 WDG herbicide needed to treat the target area (see the following calibration example).
Note: Sprayer calibration (volume of spray needed to treat 1,000 square feet) will vary with each individual operator.
Steps in Calibration:
1. Mark an area of 1,000 square feet (i.e. 20 by 50 feet or 25 by 40 feet).
2. Place the sprayer on a level surface and add water noting the final level of water in the spray tank.
3. Spray the marked area with a sufficient volume of water to provide uniform coverage. Refill the sprayer to the same level as before measuring the amount of water added. The measured water added to the sprayer is the volume needed to cover 1,000 square feet.
4. Determine the application rate (fl. oz./1,000 sq. ft.) for Prodiamine 65 WDG from the Recommendations section of this label.
5. To each volume of water used as measured in step 3, add the amount of Prodiamine 65 WDG as determined in step 4.
Example: If the sprayer uses 2 gallons of water to cover 1,000 square feet and the desired application rate of Prodiamine 65 WDG is 0.185 - 0.055 oz/1,000 square feet, then you would add 0.185 - 0.055 oz of Prodiamine 65 WDG to every 2 gallons of water to be used."
Prodiamine 65 WDG (Generic Barricade) is mixed at 1.5 level teaspoons per gallon of water to treat approximately 1000 square feet.
Yes, Prodiamine 65 WDG (Generic Barricade) is safe for pets as long as it is used as directed. Pets do need to be kept out of the area while the product is being applied, but can be allowed to re-enter the area once the product is dry (usually withn a few hours).
Prodiamine 65 WDG can be applied in the fall after the soil temperature falls below 50 degrees farenheit, but before the ground freezes., The application will control crabgrass the following spring. In most other weed applications it can be applied as long as the ground is not frozen.
When using a pre-emergent such as Prodiamine 65 WDG a surfactant is not needed. Only when you are using it as a post-emergent.
Yes, Prodiamine 65 WG can be mixed with other herbicides, such as 2,4-D, for additional weed control. We would recommend doing a tank mix first to make sure there is no clumping when mixing the two products together.
No Prodiamine should be applied prior to a rainfall. It is important to irrigate the area after the product has been applied to activate it. Pre-emergents need to reach the thatch area to prevent the weeds from germinating, so irrigation is very important.
Prodiamine 65 WDG (Generic Barricade) can be mixed with a 2, 4 D product as long as both products mix within a tank mix.
Prodiamine 65 WDG (Generic Barricade) can be mixed with a liquid fertilizer and applied. If using a dry fertilizer, do not apply the pre-emergent application onto dry fertilizer. You can apply the Prodiamine and wait a couple of weeks and then fertilize the lawn.
The 5 lb. container of Prodiamine 65 WDG is equivalent to 80 fl oz. The 0.83 oz that is the is the maximum amount that can be applied to your lawn annually is equivalent to 4.98 tsp.
Prodiamine 65 WDG is safe when used as directed around ornamental plantings. It is only a pre-emergent, used to prevent weeds emerging. It will not kill anything that is actively growing. It should not be applied over the top of newly planted ornamental plants but should be fine for established plants.
The first thing you need to know when using an herbicide such as Prodiamine 65 WDG is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 0.185-0.55 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 0.185-.055 oz of product with for each 1,000 sq ft area that needs to be treated.
Yes, you can use Prodiamine 65 WDG on established St. Augustine grass. Keep in mind that this is a pre-emergent herbicide only, so it will not kill any existing weeds. You should be applying pre-emergent in early Spring before soil temps reach 55 degrees for crabgrass prevention, and then in late Summer/Fall as temperatures drop before they reach about 60 degrees. Please let us know if you need assistance selecting a post-emergent herbicide.
